src/gpodder/resolver.py

   1 # -*- coding: utf-8 -*-
   2 #
   3 # gPodder - A media aggregator and podcast client
   4 # Copyright (c) 2005-2008 Thomas Perl and the gPodder Team
   5 #
   6 # gPodder is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # gPodder is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19 #  resolver.py -- YouTube and related magic
  20 #  Justin Forest <justin.forest@gmail.com> 2008-10-13
  21 #
  22 # TODO:
  23 #
  24 #   * Channel covers.
  25 #   * Support for Vimeo, maybe blip.tv and others.
  26
  27 import re
  28 from gpodder.liblogger import log
  29 from gpodder.util import proxy_request
  30
  31 rr = {}
  32
  33 def get_real_download_url(url, proxy=None):
  34     if 'youtube-episode' not in rr:
  35         rr['youtube-episode'] = re.compile('http://(?:[a-z]+\.)?youtube\.com/v/.*\.swf', re.IGNORECASE)
  36
  37     if rr['youtube-episode'].match(url):
  38         req = proxy_request(url, proxy)
  39
  40         if 'location' in req.msg:
  41             id, tag = (None, None)
  42
  43             for part in req.msg['location'].split('&'):
  44                 if part.startswith('video_id='):
  45                     id = part[9:]
  46                 elif part.startswith('t='):
  47                     tag = part[2:]
  48
  49             if id is not None and tag is not None:
  50                 next = 'http://www.youtube.com/get_video?video_id='+ id +'&t='+ tag +'&fmt=18'
  51                 log('YouTube link resolved: %s => %s', url, next)
  52                 return next
  53
  54     return url
  55
  56 def get_real_channel_url(url):
  57     r = re.compile('http://(?:[a-z]+\.)?youtube\.com/user/([a-z0-9]+)', re.IGNORECASE)
  58     m = r.match(url)
  59
  60     if m is not None:
  61         next = 'http://www.youtube.com/rss/user/'+ m.group(1) +'/videos.rss'
  62         log('YouTube link resolved: %s => %s', url, next)
  63         return next
  64
  65     r = re.compile('http://(?:[a-z]+\.)?youtube\.com/profile?user=([a-z0-9]+)', re.IGNORECASE)
  66     m = r.match(url)
  67
  68     if m is not None:
  69         next = 'http://www.youtube.com/rss/user/'+ m.group(1) +'/videos.rss'
  70         log('YouTube link resolved: %s => %s', url, next)
  71         return next
  72
  73     return url